Home / 21,738.16-29,987.98-14,181

Finding the Fourth Proportional to 21,738.16, 29,987.98 and 14,181

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Solution

The fourth proportional to 21,738.16, 29,987.98 and 14,181 is: 19,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.16 : 29,987.98 = 14,181 : x
  2. Step 2: Convert to fraction form
    21,738.16/29,987.98 = 14,181/x
  3. Step 3: Cross multiply
    21,738.16x = 29,987.98 × 14,181
  4. Step 4: Simplify right side
    21,738.16x = 425,259,544.38
  5. Step 5: Solve for x
    x = 425,259,544.38/21,738.16
  6. Step 6: Final answer
    x = 19,562.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.